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Finding the Fourth Proportional to 8,476.95, 12,706.95 and 4,026.78

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Solution

The fourth proportional to 8,476.95, 12,706.95 and 4,026.78 is: 6,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.95 : 12,706.95 = 4,026.78 : x
  2. Step 2: Convert to fraction form
    8,476.95/12,706.95 = 4,026.78/x
  3. Step 3: Cross multiply
    8,476.95x = 12,706.95 × 4,026.78
  4. Step 4: Simplify right side
    8,476.95x = 51,168,123.89
  5. Step 5: Solve for x
    x = 51,168,123.89/8,476.95
  6. Step 6: Final answer
    x = 6,036.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.